Exercise III — task. Science CBSE, Class 7.

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A simple pendulum takes 32 $s$ to complete 20 oscillations. What is the time period of the pendulum?

The time period is calculated by the formula

$Time\ period\ =$ $\frac {1}{Number\ of\ oscillations}$
$Time\ period\ =$ $\frac {Time\ taken}{Number\ of\ oscillations}$
$Time\ taken\ =$ $\frac {Time\ period}{Number\ of\ oscillations}$
$Time\ period\ =$ ${Time\ taken} \times{Number\ of\ oscillations}$

On substituting the given values in the formula, we get the time period as

$s$ .

$1$

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